Cello Lesson

My younger son has been taking cello lessons for about two years now. He tried violin when he was three or so, but realizing that he can never outdo his older brother, he just lost interest in it. I suggested to him to consider other instruments like cello. He liked the idea of having a bigger instrument than his brother:) We found a local teacher upon recommendation from one of the staff at a youth orchestra. She is very gentle, kind and patient. My little boy just zipped through the Suzuki books, but the more difficult the pieces gets, more puzzled he got. I mean, to me, he had no directions. He was basically leading the lesson. He would start playing whatever he wanted to start the lesson with. Sometimes it could be a scale, another time, it could be a piece he is working on at the moment. I just started feeling he was not getting the most out of the lesson. He didn't know most of the scales. In two years, he only knew two major scales by heart. I even asked her if there were any scale book she could recommend he could use. She said she would show me, but never happened. He never had an etude book. He can't read music. I started to supplement note reading at home. I like her as a person, but I didn't feel she was really passionate about teaching my son cello.
I went back and forth thinking, if I should stick with her or not. Deep in my heart, I knew it was time for me to look someone else. Last month, I finally did. I knew about this teacher who is very respected, but I also knew he wouldn't teach young beginners because when I first met him at a social gathering a few years ago, he told me so. But now my son's been playing for two years, he is not a complete beginner. So I contacted him and he agreed to see him. I took my son to his first lesson with a new teacher. Let's call him Mr. S since I don't know if he wants his name published on the Internet.
First, he had my son play what he was working on and some scales. Then he went on to the basics of left hand (my son's fingers collapsed when he pressed on the strings and he told him to keep it round) Aha! Then the bow grip. Even I knew his bow hold wasn't right. He told my son to watch the thumb and pay attention not to let it slip) This was night and day! Now I know what to look for to ensure the correct posture and arms, etc.
Then he explained to him that he will divide one hour lesson into four segments. First, scale, second, exercise (bowing, finger strengthening, etc.), third, etude and fourth, piece of music. This was exactly what he needed!!!! STRUCTURE! I am so glad that I made a choice.
I emailed the old teacher and politely told her that I was switching the teacher and thanked her for the past two years. I just wished I acted sooner...